Knife



L. GALLINEK.

KNIFE.

APPLICATION FILED JUNE 5,1920.

IL ,372,8@7o Patented Mar. 29, 19211 In ven tor: LAURA G/lLL/NEK AittyUNTTED STATES PATENT @FFTQE.

KNIFE.

\ Specification of Letters Patent.

Patented Mar. 29, 19211.

Application filed June 5, 1920. Serial No. 386,683.

T 0 all to ham it may concern Be it known that I, LAURA GA LINEK, acitizen of the United States, residing at New York city, in the countyof New York and State of New York, have invented certain new and usefulImprovements in Knives, of which the following is a specification. 7

My invention relates to improvements in folding pocket knives.

One object of the invention is to provide a device of this characterwhich is simple in construction, effective in operation and which can beproduced at a minimum cost.

Another object is to provide a handle stamped from a single blank,incasing one or more knife blades, which may be held in open or closedposition without employing the usual knife back spring.

In the accompanying drawings,

Figure 1 is a perspective view of my improved pocket knife;

Fig. 2 is a bottom plan view showing one blade extended and the otherclosed;

Fig. 3 is a vertical sectional view showing the relative positions ofthe blades and their locking hooks.

Referring to the drawings, 10 indicates the handle or shell portioncomprising two parallel sides 11 and connecting web portion 12 formingthe back of the handle. A transverse rivet 13 adjacent each end of theshell 10 and located centrally of the width of sides 11 form the pivotsfor the opposed knife blades 14.

The knife blades 14 are provided with elongated openings or slots 15located in the tang or butt end 14 and are adapted to permitlongitudinal and arcuate movement of the blades about the pin 13. Theback of the blade, or that part which has a blunt edge, is provided withtwo hook shaped projections 15 and 15", each of which is adapted tooverlap or engage the back portion or web 12 of the shell 10 when theblade is extended or open. The back or web 12 is provided with a slot 16adjacent each end, to accommodate the lateral movement of the hooks 15,15 and 17 and also to provide a hooking edge for each. The hook 15overlaps or hooks over the end of the web 12 beyond the slot 16. Thecutting edge of the blades 14 is provided with a single hook shapedprojection 17 at the butt end 14, which is adapted to overlap or engagethe inner edge of the slot 16 nearest to each of the ends of the shell10, said hook 17 being used only when the blades are closed within theshell or handle member. An are shaped recess 18 is located at the frontedge of each of the sides 11 to permit the fingers to grip the blades 14as the latter are being opened.

In the operation of the knife pertaining to the opening or closing ofthe blades 14, particular reference is called to Fig. 3. To open a bladethe latter must be moved lengthwise until the hook 17 is free of the web12 at which time the pivot pin 13 will have engaged the rear end of theslot 15. The blade 14 is then swung outwardly about the pin 13 until theaxis of the blade is alined with the axis of the handle, whereupon theblade 14 is pushed inwardly, the slot 15 guiding said blade until thepin 13 contacts with the forward end of the slot. During the receding ofthe butt 14 of the blade 14 within the shell 10, the hook projection 15and 15 will come into engagement with the edges of the slot 16 and endof the web 12. It will be noted that the construction adapted forlocking the blade in open position forms a triangular support againstbackward or forward arcuate movement of the blade 14. Each of the hooks15 and 15', while hooked to the back or shell 12 is prevented fromacting as a fulcrum for the other by the pin 13, which re ceives thebulk of the strain and equalizes the pressure brought to bear againsteach hook.

To close the blade 14 the latter will be pulled out until the hooks 15and 15 are disengaged from the back or web 12. The blade is then swungabout the pin 13 until the blunt portion of the butt 14 contacts withthe inner edge of the back or web 12. The hook 17 will enter andprotrude above the slot 16, whereupon a slight outward movement of theblade 14 toward the end of the shell or handle will bring the said hookinto engagement with the end portion of the web 12 looking the latterwithin the handle. The blades are pivoted at each end of the handle 10and are folded in an arouate movement toward each other, and when closedthey will be side by side within th handle. I

I claim 1. In a folding pocket pen knife, the combination of a U-shapedshell member having slots adjacent the ends thereof, and transversepivot pins between the walls of said shell adjacent the endsthere0f,"knife blades each having a tang provided With a slot thereinadapted to embrace one of said pivot pins, and hooking means providedfor securing said blades either in closed or open position by engaglngsald hooking means with said slots in the shell member.

2. A pen knife comprising a handle member having a slot in its rearWall, and a lade pivoted in said handle member, said blade having hooksat the opposite edges of its tang adapted to engage the end Walls ofsaid slot whereby said blade may be looked in open or closed position.

3. A pen knife comprising a handle memberi having an elongated slot inits rear Wall, a blade pivoted in said handle member, a pair of hookscarried by the rear edge of the tang of said blade and adapted to engagethe end Walls of said slot when the blade is open, and an additionalhook carried by the front edge of the tang of said blade and adaptedtoengage one of the end Walls of theslot When the blade is closed.

signature.

LAURA GALLINEK.

